910 results about "Rice grain" patented technology

The invention relates to the technical field of rice grain detection, in particular to a rice grain mixed-planting rapid nondestructive detection method based on hyperspectral imaging, which comprises the following steps: S1, collecting a rice hundred-grain board hyperspectral image, carrying out preprocessing and region-of-interest segmentation, and extracting a full-wave band spectrum grayscale image of a target region; s2, constructing a multi-channel attention mechanism network model suitable for nondestructive testing of mixed rice grains, and inputting the full-wave band spectrum grayscale image as a data set for classification training; according to the rapid nondestructive testing method for mixed planting of the rice grains based on hyperspectral imaging, spectrum and spatial characteristics of the rice grains are fused, spectrum and spatial characteristic information of the rice grains is enhanced through a multi-channel attention mechanism and a self-attention mechanism module, the classification precision of the rice grains is further helped to be improved, and the detection accuracy of the mixed planting of the rice grains is improved. According to the multi-channel attention mechanism network model provided by the invention, a segmentation module and a classification module are fused, so that the parameter quantity during high-resolution image training can be reduced.

The invention discloses a processing method for reducing the broken rice rate of commercial rice, which comprises the following steps: S1, an unhulled rice pretreatment stage: S1a, a multi-stage linkage impurity removal process is adopted, and large impurities, light impurities, metal impurities and stones in unhulled rice are removed through combination of classified screening, airflow separation, magnetic separation and specific gravity stone removal, so that the impurity removal rate is greater than or equal to 99%; s1b, on the basis of a dynamic adaptation model of rice physical characteristics and rice hulling parameters, rice moisture and hardness data are collected in real time through a first detection device, the rice hulling flow and the inter-roller pressure are calculated and adjusted through a control unit, and closed-loop control is achieved; s2, carrying out a color sorting and polishing stage; s3, carrying out a rice milling regulation and control stage; and S4, entering a vacuum packaging stage.

The invention relates to the technical field of gene engineering, and discloses an METS2 gene for regulating and controlling the grain shape of rice, a protein and application of the METS2 gene, and the nucleotide sequence of the METS2 gene is shown as SEQ ID NO.1. The invention further discloses application of the METS2 gene in regulation and control of the rice grain shape. According to the METS2 gene for regulating and controlling the rice grain shape, the protein and the application of the METS2 gene, the METS2 gene is overexpressed in a rice plant, short-grain-shaped rice can be obtained, the short-grain-shaped rice is not prone to breakage in the processing process, and the quality of a finished product is high; a basis is provided for further clarification of the molecular mechanism of the rice grain shape, and new gene resources and breeding resources are provided for rice breeding.

The invention relates to a phase perception residual learning-based rice drying moisture content fusion prediction method, which comprises the following steps of: acquiring multi-dimensional data in a rice drying process, preprocessing, dividing three drying phases based on a change rate of relative humidity of waste gas, and continuously optimizing; an improved Page model is constructed, drying coefficients k and n are fitted in stages, k is associated with the hot air temperature through an Arrhenius formula, n is associated with the hot air temperature through a quadratic equation, and a physical baseline predicted value is generated after parameters are optimized through a deep bed test; calculating a residual error between the actual moisture content and the physical baseline, and training the LSTM network by taking the residual error as a target to enable the LSTM network to learn nonlinear features which cannot be described by a physical model; and fusing the physical baseline of the improved Page model and the residual error predicted by the LSTM to obtain a final fusion prediction result. The method not only ensures the physical rationality of the prediction result, but also improves the precision and generalization ability, and is suitable for intelligent regulation and control of the rice drying process.

Aiming at the problems of low efficiency, strong subjectivity, insufficient modeling ability, complex hyperspectral data noise, weak waxiness spectrum difference and the like of a traditional rice grain waxiness discrimination method, the invention provides a hyperspectral rice grain waxiness discrimination method based on multi-branch collaborative modeling. The method comprises the following steps: S1, acquiring glutinous and non-glutinous rice grain images by using a hyperspectral imaging system to obtain spectral data; s2, preprocessing spectral data through a combined method of SG smoothing, an asymmetric weighted penalty least square method and multivariate scatter correction to reduce noise and interference; s3, constructing a multi-branch modeling architecture which comprises a CNN local feature extraction module, an SRU spectrum sequence modeling module and a HorNet global high-order modeling module, and outputting a discrimination result through a classifier after multi-branch features are subjected to fusion and pooling attention weighting; and S4, evaluating the performance. According to the method, high-precision lossless discrimination of the waxiness is realized, and a technical support is provided for germplasm screening and quality evaluation in rice breeding.

The invention relates to the technical field of gene engineering, in particular to OsSULTR3; 1 protein and the coding gene thereof are applied to cultivation of selenium-rich plants. According to the invention, the OsSULTR3 is disclosed for the first time; 1 gene has the function of increasing the selenium content of rice, and OsSULTR3; 1 overexpression results in increase of the selenium content of rice grains. A new direction is provided for breeding of selenium-rich plants such as rice and the like and preparation of transgenic plants, the selenium content in the plants such as rice and the like can be remarkably improved by constructing and transforming the transgenic plants of the gene, the nutritional quality of the plants can be improved, and the gene has a wide application prospect.

The invention discloses a serratia marcescens strain and an application thereof. Belongs to the technical field of agricultural microorganism and heavy metal pollution control. The serratia marcescens separated from the rhizosphere of the rice is inoculated to the rhizosphere of the rice, is used for in-situ remediation of polluted soil rice planting, can be effectively colonized at the root of the rice, and has high safety. Manganese and iron ions in the soil can be adsorbed and chelated, and the formation of an iron-manganese adhesive film on the surface of a rice root is enhanced, so that the Cd element is prevented and controlled from entering plant roots and overground parts; the absorption of manganese and iron in the polluted soil can be increased, the growth of the rice is promoted, and the yield of the rice is increased. And the standard-reaching safe production of rice Cd in the moderately and mildly polluted soil is realized, and the method has a very good application prospect.

The invention discloses a grain specific promoter in the early stage of rice filling and application thereof, the promoter is named as proASP1, and the nucleotide sequence of the promoter is shown as SEQ ID NO: 1. The promoter has highly strict spatio-temporal expression specificity, the activation expression of the promoter is only limited in grains in the early stage of rice filling (4-12 days after flowering), especially the expression of genes is efficiently driven in endosperm and aleurone layers, and the expression is not leaked in other tissues such as roots, stems, leaves, leaf sheaths and glumes and grains in the middle and later stages of filling. The invention provides a basic and precious molecular tool for gene function research, quality improvement (such as protein and starch synthesis regulation) and bioreactor development in a key window period of rice grain development, and has important scientific research and application values.

The invention belongs to the field of fertilizers, and particularly relates to a foliar fertilizer with high amino acid synthesis efficiency and a preparation method thereof.The preparation method comprises the steps that spermidine is taken to be subjected to formic acid esterification modification, and formic acid esterification spermidine is obtained; the preparation method comprises the following steps: hydrolyzing 2, 4-epibrassinolide to obtain carboxylated brassinolide; under the action of Tween, carboxylated brassinolide and formic acid esterified spermidine are combined to form a fertilizer base full of emulsified liquid drops; and adding other nutrients to obtain the foliar fertilizer. The leaf fertilizer for increasing the amino acid content of rice can increase the content of amino acids, especially lysine, in grains on the premise of increasing the yield of rice, and nitrogen absorption and utilization of the rice grains are improved.

The invention discloses a milling process control method based on reinforcement learning, which comprises the following steps: collecting and processing multi-source process data in real time, normalizing and extracting features, and forming state feature vectors; the state feature vectors are input into a DSAC-T reinforcement learning controller, the opening degree of a feeding valve and the rotation speed adjustment of a main shaft are used as action spaces, a reinforcement learning strategy network is constructed, and a process drift online detection sub-module is integrated; training a controller to maximize the rice yield, minimize the broken rice rate and energy consumption, and combining the process safety index to obtain an optimal strategy; deploying the trained controller in an actual scene, and outputting an adjustment instruction to implement closed-loop control; when the actual rice grain size or broken rice rate exceeds the model prediction deviation, online incremental learning is automatically triggered, and control parameters are optimized; the intelligent, self-adaptive and safe control of the rice milling process is realized. According to the method, adaptive optimization control of the rice milling process is realized, and the method has efficient response capability to dynamic disturbance and abnormal states.

The invention discloses an application of a rice yellow-like stripe protein gene OsYSL18. The sequence of the yellow-like stripe protein gene OsYSL18 is as shown in SEQ ID NO. 1. The gene can be applied in multiple aspects of preventing and controlling the cadmium element from being transferred to the overground part of the rice, reducing the cadmium content of rice grains and the like. The biological function of the yellow stripe-like protein gene OsYSL18 in rice is found through a large number of experiments, and after the gene is knocked out, the cadmium content of the overground part of a rice seedling subjected to cadmium treatment is remarkably reduced; after the rice is mature, the grain cadmium content is reduced by more than 85%.

The invention discloses a production area rice quality evaluation method based on multi-dimensional index fusion, and the method comprises the steps: determining a subjective weight through employing an analytic hierarchy process, calculating an objective weight through combining with a CRITIC method, and obtaining a comprehensive weight through multiplication integration normalization; establishing an index grading standard based on a sample data quantile, calculating the membership degree of each index by using a reduced half trapezoidal distribution function, and constructing a fuzzy relation matrix; and finally, synthesizing the comprehensive weight and the fuzzy relation matrix, and judging the rice quality grade according to a maximum membership degree principle. Compared with an existing evaluation criterion, the evaluation method comprehensively considers the subjective weight and the objective weight of each index, the rice quality can be evaluated more accurately, and therefore the rice grade is scientifically judged.

The invention provides application of a rice grain chalkiness regulation gene Chalk13, and belongs to the technical field of biology. According to the application, the rice grain chalkiness regulation and control gene Chalk13 is used for regulating and controlling formation of rice grain chalkiness, the nucleotide sequence of the rice grain chalkiness regulation and control gene Chalk13 is shown as SEQ ID NO: 1 in a sequence table, and the nucleotide sequence of a coding region of the rice grain chalkiness regulation and control gene Chalk13 is shown as SEQ ID NO: 2 in the sequence table. The invention provides an application of a rice grain chalkiness regulation and control gene Chalk13. The rice grain chalkiness regulation and control gene Chalk13 is used for regulating and controlling the chalkiness degree and the chalkiness rate of rice grains.

The invention discloses a full-automatic crushing and detecting method and system for grain particle materials, and relates to the technical field of crushing and detecting. The method comprises the following steps that 1, whether first unprocessed grains are unhulled rice or not is judged, if the first unprocessed grains are not the unhulled rice, the next step is executed, otherwise, if the first unprocessed grains are the unhulled rice, the step 3 is executed, 2, volume fixing treatment is conducted on the first unprocessed grains, the step 4 is executed, 3, volume fixing treatment is conducted on the unhulled rice, the unhulled rice is hulled through a rice huller module, and brown rice is obtained; step 4, judging whether the moisture content of unhulled brown rice exceeds 15% or not, if the moisture content does not exceed 15%, skipping to step 7, if the moisture content exceeds 15%, executing the next step, and if the moisture content does not exceed 15%, executing step 4, and if the moisture content does not exceed 15%, executing step 5; according to the invention, automation and unmanned operation of the whole process of crushing, quantitative weighing, liquid adding, oscillation extraction, separation, pipetting, dilution, incubation and physicochemical index detection of a sample can be realized.

The invention belongs to the technical field of microbial fermentation and biological agriculture, and discloses a soil remediation fungicide as well as a preparation method and application thereof. The preparation method comprises the following steps: activating bacillus megatherium Z101, inoculating the activated bacillus megatherium Z101 into fermentation liquor containing rice straw powder, carrying out fermentation culture, and carrying out vacuum spray drying on fermentation mixed liquor after fermentation is completed, so as to obtain soil remediation bacterium powder; or further mixing the soil remediation bacterium powder with auxiliary materials and water, and granulating to obtain the soil remediation bacterium granules. The application method comprises the following steps: in a rice planting stage, applying the soil remediation fungicide and an inorganic fertilizer together to remedy rice field soil and promote rice growth. The soil remediation fungicide prepared by fermentation culture of the bacillus megatherium Z101 has remarkable advantages in the aspects of rice yield increase, soil pH value increase and physicochemical property improvement, and a new application way is provided for the bacillus megatherium Z101.

The invention belongs to the technical field of crop cultivation, and particularly discloses a two-component flavor enhancer for rice flavor enhancement as well as a preparation method and application of the two-component flavor enhancer for rice flavor enhancement, and the two-component flavor enhancer is prepared from a component A and a component B in a weight ratio of 1: (0.9-1.1), wherein the component A is prepared from the following raw materials in parts by weight: 80 to 120 parts of proline and 180 to 220 parts of ornithine; the component B is prepared from 2 to 5 parts of colloidal chitosan nano-selenium and 350 to 450 parts of zinc oxide quantum dots. The flavor enhancer developed in the invention is helpful for efficiently increasing the content of free proline and proline dehydrogenase, increasing the accumulation of 2-AP in rice grains, and effectively improving the rice fragrance.

The invention relates to the technical field of milled rice with embryo processing, in particular to milled rice with embryo processing equipment with combined blades and an abrasive belt, which comprises an equipment body and a processing chamber arranged on the front surface of the equipment body, and further comprises a conveying mechanism arranged in the processing chamber and used for conveying brown rice to be processed; concave reinforcing pieces are welded on the periphery of the outer side of the rectangular processing port on the upper surface of the equipment body; and the blade processing mechanism is fixedly arranged in the rectangular processing opening and located over the conveying mechanism, and the blade processing mechanism is used for grinding off peripheral rice skins of the brown rice conveyed on the conveying mechanism. According to the invention, germ rice is processed by adopting a combined blade and abrasive belt mode, and the blade group is vertically arranged above the conveying abrasive belt, so that when rice grains transversely roll forward in use, the peripheral surfaces of the rice grains are in contact with the first blade and the second blade to softly grind rice skins, and the two ends of the rice grains are protected, thereby ensuring that germs are completely reserved.

The invention discloses a grain hyperspectral image classification method based on incremental learning, and belongs to the field of image classification, and the method comprises the following steps: S1, the construction of an experimental data set: selecting a plurality of old-class rice grains and a plurality of new-class rice grains, collecting a fixed number of samples for each class, dividing a historical training set, a historical test set, a new category training set and a new category test set, converting the hyperspectral original data into a Tensor format, and normalizing the hyperspectral original data to [0, 1]; s2, initial model training; s3, new category incremental training: extracting historical category statistical parameters from a feature memory module to construct an anchoring pool, screening Top-3 similar historical categories, embedding a diffusion model noise adding process, injecting spectrum and space priori knowledge to generate virtual samples, performing dual dynamic verification, and combining real and virtual samples to form a new category training set; and calculating the distillation weight based on the spectrum similarity, and training the model through the dual-target distillation loss.

The invention provides a method and device for extracting a region of interest of rice and electronic equipment, and the method is applied to the technical field of computer vision, and comprises the steps: carrying out the preprocessing of an obtained hyperspectral image of the rice, and obtaining a reference hyperspectral image; obtaining a structure constraint mask, a sparse adjustment mask and a random mask; fusing the structure constraint mask, the sparse adjustment mask and the random mask to obtain a target mask, and performing mask processing on the reference hyperspectral image by using the target mask to obtain a target hyperspectral image; extracting target features of the target hyperspectral image; target features are processed, a hyperspectral image is reconstructed, and a boundary probability graph of the region of interest is output; and determining a mask of interest of the rice according to the boundary probability graph, and extracting a region of interest from the hyperspectral image. According to the method, the structural constraint mask and the random mask are combined, manual intervention is avoided, background noise is suppressed, and the accuracy of region-of-interest extraction is improved.

The invention discloses a heavy metal blocking agent special for rice and a method for reducing the cadmium content of rice grains by using the heavy metal blocking agent, and belongs to the technical field of agricultural environment protection and polluted soil remediation. The heavy metal blocking agent special for rice comprises the following raw materials: 20-30% of molybdenum disulfide, 10-20% of diammonium hydrogen phosphate, 5-10% of disodium magnesium ethylene diamine tetraacetate, 5-10% of zinc ethylene diamine tetraacetate, 10-20% of a silicon fertilizer, 1-2% of a cosolvent, 1-2% of a solubilizer, 1-2% of ethanol and the balance of water. The special heavy metal blocking agent for the rice can effectively inhibit heavy metal cadmium from being transferred into rice grains, obviously reduce the cadmium content of the rice grains, obviously improve the yield of the rice grains, and can obviously reduce the cadmium content in the rice and ensure that the cadmium content in the rice grains meets the national food hygiene standard when being applied to the rice planted in a rice field with soil polluted by cadmium.

The application discloses a kind of rice field soil lead pollution analysis method and system, method includes: obtaining the current soil attribute data set of target rice field and soil moisture content distribution data, combine future expected water management parameters, simulate moisture content space-time variation sequence by soil water migration model;Dissolution-precipitation equilibrium tendency state index of each time step Pb is calculated based on moisture content change and soil attribute, the advancing track of Pb active front is identified;The front track is overlaid with the current rice Pb overproof risk spatial distribution, and the potential Pb activation amplification area is determined;Along the front advancing direction, strip-shaped analysis unit is divided, and Pb pollution risk evolution index is calculated by combining front arrival time and current risk value;Finally, the analysis report containing amplification area position, risk evolution order and leading factor diagnosis result is output.The technical leap of rice field Pb pollution risk from "static status evaluation" to "dynamic evolution prediction" is realized.

The application discloses a transcription factor for regulating protein content of rice grains GPC6 and application, the amino acid sequence of the transcription factor is shown as SEQ ID NO. 1, the transcription factor comprises a genomic region and a promoter, the nucleotide sequence of the genomic region is shown as SEQ ID NO. 2, the nucleotide sequence of the promoter is shown as SEQ ID NO. 3, the coding sequence (CDS) is shown as SEQ ID NO. 4, and all alleles thereof are contained. The application identifies a repeatedly detectable locus on chromosome 6 by performing whole genome association analysis on gluten content and total protein content GPC6 . Gene cloning is carried out on the locus, so that the genetic resources for improving rice quality are enriched, and help is provided for improving rice quality, in particular, protein content.

The invention discloses a method for increasing the content of slowly digestible starch in rice based on a dry heat technology. Comprising the following steps: A, performing dry heat treatment on rice; b, hulling the unhulled rice obtained in the step A; c, milling the rice obtained in the step B; d, the rice obtained in the step C is polished, ground and sieved to obtain rice flour, and the content of the fast digestible starch, the content of the slow digestible starch and the content of the resistant starch in the rice are measured. According to the method, the slowly digestible starch content of the rice is effectively increased by a simple, effective, low-cost, convenient and feasible method, and the effect of increasing the slowly digestible starch content of the rice is achieved by directly carrying out dry heat treatment on the unhulled rice for the first time.

The invention belongs to the field of crop genetic breeding, and relates to a method for efficiently creating brown glume rice and application thereof. According to the application, a stably inherited brown glume mutant hcm is created through radiation mutagenesis, and a molecular marker of brown glume characters is developed; a restorer line Huazhan is used as a recurrent parent for recurrent breeding with a mutant hcm, and the brown glume rice is efficiently created by combining molecular marker-assisted selection. And matching the rice sterile line Yunnan 165S with brown glume rice to obtain F1 hybrids, and planting the F1 hybrids to obtain brown glume hybrid rice grains. According to the invention, the brown character of the hcm glume of the mutant is directionally introduced into the restoring line Huazhan and the hybrid thereof, and when the improved restoring line is used for carrying out hybrid rice seed production, the hybrid and the selfing seed of the restoring line can be distinguished by utilizing the color difference of the glume of the male and female parent seeds, so that the large-scale mixed planting, mixed harvesting and color sorting separation of the hybrid are realized; the seed production efficiency of the hybrid rice is favorably improved.

The present invention describes a process for producing a food product, more specifically a ready-to-eat instant rice block that can be reconstituted with a uniquely crispy and sensorially appealing texture in a reduced preparation time, either by conventional cooking or microwave heating. The present process comprises the steps of dosing the rice grains into individual portions; continuous cooking in a two-compartment tunnel with constant water exchange; block molding and compaction; dehydration by frying; and cooling and packaging.

The utility model provides a rice hull screening device for rice processing and production. According to the rice hull screening device for rice processing and production, a filtering frame is fixedly connected to the position, close to one side, of the top of a bottom plate, an inclined filtering plate is installed in the filtering frame, a rice discharging frame is installed on the front face of the filtering frame, and an inclined plate is installed at the bottom of the inner wall of the filtering frame; the device comprises a filtering frame, a screening frame is installed at the top of the filtering frame, an air passing frame is installed in the screening frame, two rotating shafts are rotationally connected to the positions, close to the left side, in the screening frame, a plurality of fanning plates are installed on the outer surfaces of the two rotating shafts, and a driving assembly is installed on the back face of the screening frame through a transmission shell. According to the rice husk screening device for rice processing and production, rice and rice husks with different weights are screened through separation, and then secondary filtering is conducted through the inclined filtering plate, so that the screening effect of the rice husks after rice husking is improved.

The utility model relates to the technical field of seedling culture, in particular to a rice seedling culture device which comprises a main frame body, a plurality of layers of culture platforms are erected on the main frame body; a plurality of groups of seedling culture liquid storage boxes which are arranged at intervals are arranged on the culture platform along the horizontal direction, and a plurality of seedling culture baskets are arranged on the seedling culture liquid storage boxes; and a light supplementing lamp over against the seedling culture basket is arranged above each layer of culture platform. Through the design of multiple layers of culture platforms, a main liquid conveying pipe, a sub liquid conveying pipe, a liquid storage tank, a conveying pump and the like on the main frame body, accurate conveying and continuous supply of a nutrient solution of the rice seedling culture device are achieved. Therefore, the rice seedlings can obtain sufficient and balanced nutrition support, and the culture efficiency and the growth quality of the seedlings are improved.

The application discloses a method for enriching polyphenols in rice bran by a multi-channel interception combined circulation adsorption, and comprises the following steps: (1) raw material pretreatment; (2) ultrasonic-assisted organic solvent crude extraction; (3) multi-channel interception combined circulation adsorption treatment; (4) solvent elution; and (5) vacuum concentration. The method takes rice bran as a raw material, enriches polyphenols in the rice bran by a multi-channel interception combined circulation adsorption, and optimizes enrichment conditions of the polyphenols, so that the prepared rice bran polyphenols have high total phenol content, total flavonoid content and in-vitro antioxidant activity, and the method has the advantages of simple operation, high extraction efficiency and reduced solvent consumption. The method can not only improve the utilization value of the rice bran, but also promote the upgrading of the rice industry and reduce waste.

This invention belongs to the field of crop cultivation technology, specifically relating to a rice nano-flavor enhancer and its application in rice cultivation. The rice nano-flavor enhancer of this invention is prepared from raw materials such as sodium octenyl succinate starch, sodium ascorbate, and sodium selenite. The prepared octenyl succinate starch-nano-selenium has advantages such as small nanoparticle size and system stability. This flavor enhancer can not only significantly improve the overall aroma of fragrant rice, but also enhance the aroma of non-fragrant rice. Specifically, it can significantly increase the content of volatile aroma compounds such as 2-acetyl-1-pyrroline (2-AP) in fragrant rice grains, and significantly increase the content of volatile aroma compounds such as vanillin, benzaldehyde, and geranylacetone in non-fragrant rice grains. Unlike traditional rice flavor enhancers, the rice nano-flavor enhancer of this invention has better applicability and a wider range of applications, helping to meet the growing market demand for high-quality rice.

The application discloses a limiting distribution model for predicting accumulation of organic phosphates (OPEs) in rice grains and a construction method thereof, and belongs to the technical field of environmental pollutant migration prediction and agricultural safety. The model is based on the limiting distribution theory, systematically identifies four key links (soil-root absorption, root-stalk transportation, stalk-leaf distribution and leaf-grain migration) of OPEs migration from soil to rice grains and limiting factors of each link, realizes accurate prediction of grain accumulation under different OPEs, different environmental conditions and different rice varieties by quantifying and integrating distribution coefficients of each link. The application calibrates distribution coefficient equations of each link by measuring physical and chemical parameters of OPEs, soil environmental parameters, rice physiological parameters and in-vivo distribution data, the relative error of model prediction is less than or equal to 15%, the model can be applied to farmland OPEs pollution risk assessment, optimization of prevention and control measures and food safety early warning, and has the advantages of strong universality, simple operation and accurate prediction.